/Engine/Plugins/Experimental/MeshModelingToolsetExp/Source/ModelingEditorUI/Public/ModelingWidgets/SComboPanel.h
Event that fires when selection changes
typedef TBaseDelegate_OneParam< void, [TSharedPtr](API\Runtime\Core\Templates\TSharedPtr)< [FComboPanelItem](API\Plugins\ModelingEditorUI\ModelingWidgets\SComboPanel\FComboPanelItem) > > FOnActiveItemChanged